Comparing a silver-impregnated activated carbon with an unmodified activated carbon for disinfection by-product minimisation and precursor removal

Watson, Kalinda; Farré, María José; Knight, Nicole

doi:10.1016/j.scitotenv.2015.10.125

Cited by 32 publications

(14 citation statements)

References 31 publications

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“…However, the influence of carbon surface tailoring on Brremoval have not been extensively investigated, and very few studies have explored the Brremoval by tailored AC surface at practical adsorbent doses [Watson et al 2016] along with the control of brominated DBPs in natural waters.…”

Section: Introductionmentioning

confidence: 99%

Removal of bromide from surface waters using silver impregnated activated carbon

2017

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The main objectives of this study were to develop an understanding of silver impregnated activated carbon (SIAC) preparation for enhanced bromide (Br) removal from water, and to investigate the impact of aqueous background composition on the Br removal. Several SIACs were produced using various combinations of oxidation and silver impregnation procedures and powdered activated carbons (ACs). Regardless of the preparation procedure, SIACs showed significantly Br uptakes than the virgin ACs. The Br removal efficiency was affected by (i) the background water composition (e.g. Cl and NOM competition reduced the Br uptake), (ii) silver impregnation process (e.g. silver content, pre-oxidation of virgin AC; silver impregnation largely increased the Br removal, and the pre-oxidation of AC prior to silver impregnation was found to be important), and (iii) AC characteristics (e.g. surface area, oxygen content; SIACs with higher silver contents and larger surface areas exhibited higher degrees of Br removal). The Br removal by SIAC reduced the formation of brominated THMs. Jar test results showed that coagulation did not have an impact on Br removal by SIAC.

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Section: Introductionmentioning

confidence: 99%

Removal of bromide from surface waters using silver impregnated activated carbon

2017

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“…The use of activated carbon with the size of particles from 0.1 to 2,000 μm, impregnated with silver, in a complex method for deep water treatment and conditioning is wellknown. The treated water is subjected to preliminary filtering [8]. Silver in the ionic and molecular forms moves into treated/conditioned water, contaminating it [9].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of modernized paper filtering materials for water purification, assessment of their properties

Zahorodniuk

Voitsekhovsky

Korobochka

et al. 2019

EEJET

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“…These composite materials have shown high adsorption affinities for contaminant species including heavy metals, halides and DOM. The removal efficiency for bromide and iodide for native and silver impregnated AC was compared, with results showing a far superior removal of bromide by the silver impregnated material (95% as compared to 26% for native AC) [68]. This material also showed an improved efficiency for the removal of total dissolved organic carbon when used in conjunction with an enhanced coagulation process (77% as compared to 67%).…”

Section: Chemical Modifications Of Activated Carbon For Improved Contmentioning

confidence: 99%

Activated Carbon, Carbon Nanotubes and Graphene: Materials and Composites for Advanced Water Purification

Sweetman

May²,

Mebberson³

et al. 2017

161

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Abstract:To ensure the availability of clean water for humans into the future, efficient and cost-effective water purification technology will be required. The rapidly decreasing quality of water and the growing global demand for this scarce resource has driven the pursuit of high-performance purification materials, particularly for application as point-of-use devices. This review will introduce the main types of natural and artificial contaminants that are present in water and the challenges associated with their effective removal. The efficiency and performance of recently developed materials for water purification, with a focus on activated carbon, carbon nanotubes and graphene will be discussed. The recent advances in water purification using these materials is reviewed and their applicability as point-of-use water purification systems discussed.

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Comparing a silver-impregnated activated carbon with an unmodified activated carbon for disinfection by-product minimisation and precursor removal

Cited by 32 publications

References 31 publications

Removal of bromide from surface waters using silver impregnated activated carbon

Removal of bromide from surface waters using silver impregnated activated carbon

Development of modernized paper filtering materials for water purification, assessment of their properties

Activated Carbon, Carbon Nanotubes and Graphene: Materials and Composites for Advanced Water Purification

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